* 2.4GHz High quality Color CMOS sensor. * 2.5-inch TFT-LCD screen provides crisp images. * Range up to 200 feet (clear line of sight; ideal range 100 feet). * 4-channel operation allows multiple (1-4) camera system (optional). * Search and play recorded video (DVR). * Recever support Mp3/Mp4. * Recever Built-in DV Recorder dunction. * With SD memory card siot. * Simple menu navigation . * Built-in microphone for audio monitoring. * Built-in Rechargeable Li-battery. * built-in rechargeable li-battery in the camera,for at least 8 hours continuous working. * Built-in microphone for audio monitoring * Min 100m transmission distance without block. * The camera build in the button.